Pressure-regulator



(No Model.)

L.B.PULT0N.

PRESSURE REGULATOR.

Patented Apr.. f 20, 1886-.

`l,0n D r nl M Q f a, I L W M o pw,

l l .wirr j orney UNITED- STATES PATENT Orr-ion.

LOUIS B. FULTON, OF PITTSBURG, PENNSYLVANIA.

PRESSURE-REGULATO R.

SPECIFICATION forming part of Letters Patent No; 340,107, dated April 20, 1886. v

Application filed January 29, 1886. Serial No. 190,172. (No model.)

To all whom, it may concern,.-

Be it known that I, Louis B. FULTON, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Pressure- Regulators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the artto which it appertainsv to make and use the same.

My invention relates to an improvement in pressureregulators. Hitherto adouble valve has been so arranged with respect to the highpressure pipe and low-pressure chamber that one valvesection received the high pressure on its upper side and the other section on its under side, thereby producing an equilibrium, as far as the pressure on the valve was con cerned; or a single valve not in equilibrium has been employed. The changes in pressure in the low-pressure chamber have been conducted to the diaphragm-chamber through a connecting-pipe, and the vibrations of the diaphragm regulated the opening of the valve.

The object of my present invention is to provide an improved equilibrium-valve which, in connection with the means employed for operating the same, will afford an extremely sensitive and precise pressure-regulator for gas, steam, and liquids, and which Will be more simple and economical than those hitherto employed.

Vith these ends in view my invention consists in certain features of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims. y

In the accompanying drawings, Figure l is a View of 'the pressureregulator in vertical longitudinal section. Fig. 2 is a detached View of the valve and valve-seat, the valve being removed therefrom, and Fig. 3 is a plan view of the valve.

A represents the high-pressure section, and B the low-pressure section,of a pressure-regulator chamber, the chamber being preferably of globular form, as shown.

The two sections A and B are separated by a partition-wall, C, the central portion of which extends horizontally, as shown at c, to receive the valve-seat.

a and b represent the gas or duid supply pipe on the high and low pressure sidesof the regulator chamber, respectively, the arrows showing the direction of flow ofthe liquid.

The valve-seat consists of a hollowmalethreaded plug, D, adapted to screw into a perforation in the part c of the wall O.

From the margin of the hole in the hollow plug D two or more legs or standards, d, extend upwardly andunite in a solid head, E. The number of legs or standards is preferably four, and they are preferably constructed of uniform thickness, and gradually increasing in width as they extend upwardly from the plug D, their outer edges, e, being perpendicular to the plane of the base and flush with the edge of the head E. A wedge-shaped groove, F, is formed in the upper end of the plug D, around the edge of its central opening outside of the legs or standards d, and adjacent thereto.

G represents the valve. It consists of a hollow globular-shaped piece, the mouth g o f which is adapted to fit over the head and legs E and d of the val ve-seat with au` easy vertically sliding adjustment. Its lower edge around the mouth g is beveled to lit snugly in the groove F, and thereby, onaccount of its extended Contact, form an effectual stop to the passage of gas or liquid. In the upper end of the valveis an opening, R, preferably having a diameter equal to that of the mouth g, and adapted to receive the head E of the valve seat. A socket-plate, S, -for attaching the valve-operating rod to the valve, is located centrally over the opening R, and held firmly in position by a spider, T, the arms of which connect it with the valve. adjustment, the pressure of the gas or liquid is exerted on the sides only of the valve, and hence the valve is in equilibrium. When the valve is raised or lowered, the open space between the socket-plate S and the margin of the opening R allows the escape of gas or air and keeps the valve still in equilibrium.

H represents the diaphragmchamber connected with the pressure-regulator chamber by pillars h. The heads I and t', connecting, respectively, the upper and lower ends of the pillars h, are threaded and adapted to be When in closed screwed into openings in the lower side of the diaphragm-chamber and upper side of the regulator chamber, respectively. The diaphragm K, for receiving the pressure from the low-pressure side of the regulator, and for communicating its effect to the valve, is stretched horizontally across the diaphragmchamber,- and rests, with the exception of a narrow margin at its outer edge, on a pressureplate, k. Avalve-operating rod. L, issecured at its upper end to the under side of the plate 1c, and extends downwardly through the head I. The lower section of the rod L (denoted by l) is reduced in size, and extends through a stuffing-box, M, into the low-pressure section of the regulating-chamber, where it is attached to the socket-plate S of the valve. A pipe, N, leads from the low-pressure side of the regulator-chamber to the upper side of the diaphragm-chamber and is provided with a coupling, n, and stop-cocks on opposite sides thereof for shutting off pressure when it is desired to remove the diaphragm or gain access thereto.

O represents a lever pivoted to one of the pillars h, with its short arm connected with the valve-rod and its long arm provided with a weight,o,to determine the pressure at which the valve shall close.

A cap, l?, is secured over the mouth of a a pocket, W, in the bottom of the regulatorchamber to remove sediment, gain access to the valve, Src. The pocket W is located on the high-pressure side of the partition C, and hence the sediment and trash, which has in former constructions been allowed to pass through the valve, wearing and obstructing it, is collected and removed before it reaches the valve.

By the introduction of the single equilibrium valve in the place of the double or two-section valve hitherto employed the cost of construction is lessened, and the complete equilibrium in which the valve is held admits of its receiving the vibrations ofthe diaphragm with great precision.

It is evident that other forms of valve-operating mechanism might be employed, and that the regulator chamber might be of other shapes, and that other slight changes might be made in the construction and arrangement of the several parts without departing from the spirit and scope of my invention; hence I do not wish to limit myself strictly to the construction herein set forth; but,

Having fully described my invention, what I claim as new,and desire to secure by Letters Patent, is-

1. In a pressure-regulator, the combination, with a diaphragm adapted to receive the pressure from the pressure regulator chamber, of a valve-seat having a raised portion, the latter having an opening or openings therein, the valve adapted to surround the raised portion of its seat, and the valve-operating rod connecting the valve with t-he diaphragm, substantially as set forth.

2. In apressure-regulator, the combination,

with a diaphragm adapted to receive the pressure from the pressure-regulating chamber, and the valve-seat consisting of a solid head or disk supported over'the opening by legs or standards,of a globular-shaped valve adapted to closely embrace and slide on the raised portion of the seat, and t-he valve-operating rod connecting the valve and diaphragm, substantially as set forth.

3. In a pressure-regulator, the globularshaped valve and the valve-seat, the latter being provided with a raised portion, substantially as set forth, and with a groove around its opening, and the former being a wedgeshaped edge adapted to t the groove, and a chamber at its top adapted to fit the top of the raised portion of the valve-seat, substantially as set forth. v

In testimony whereof I have signed this specification in the presence ol' two subscribing witnesses.

LOUIS B. FULTON.

Witnesses:

SAML. FLOERSHEIM, M. B. CHAPLIN.- 

